A pillion passenger fired from a motorcycle at a group of men stood outside a store, with further gunshot reported 90 minutes later.Officers said the first incident took place next to Long Hours Variety Store, Somerset Road, at 11pm on Saturday, with no reported injuries.The suspects escaped along Somerset Road despite being chased by police.At 12.30am yesterday, police received reports of more gunshots in the Border Lane East area of Devonshire, with no reported injuries.Police said they are not linking the two incidents at this stage.The main suspect in the first shooting is described as wearing a silver helmet while the motorcycle rider wore a dark coloured jacket. Officers carried out a search for the offenders in the Alton Hill area of Southampton.Police say they seized evidence for forensic examination from the second shooting, and impounded a motorcycle discovered in the vicinity.Witnesses or anyone with information should contact the Serious Crime Unit on 295-0011 or the independent and confidential Crime Stoppers hotline on 800-8477.